Valve seal



FIG. 1 is a perspective view of an embodiment of our new valve seal;

FIG. 2 is a left side view of the valve seal shown in FIG. 1;

FIG. 3 is an right side view of the valve seal shown in FIG. 1;

FIG. 4 is an end view of the valve seal shown in FIG. 1;

FIG. 5 is a top plan view of the valve seal shown in FIG. 1; and,

FIG. 6 is a bottom plan view of the valve seal shown in FIG. 1. 

The ornamental design for a valve seal, as shown. 